Canister block



FIG. 1 is a front-top perspective view of a canister block showing my new design;

FIG. 2 is a front-bottom perspective view thereof;

FIG. 3 is a front elevational view thereof where the rear elevational view is identical thereto;

FIG. 4 is a left elevational view where the right elevational view is mirrored thereto;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a cross sectional view taken along cutting lines 7-7 in FIG. 5; and,

FIG. 8 is a magnified view taken along circle 8 in FIG. 7.

The evenly dashed broken lines shown represent the portions of the canister block that form no part of the claimed design. 

CLAIM The ornamental design for a canister block, as shown and described. 